SSL Labs: New Grades for Trust (T) and Mismatch (M) Issues
Last updated on: December 20, 2022
In the 1.10.x code branch of SSL Labs, which was deployed to production last week, we made a change in how we handle assessments with trust issues. Previously, all certificates that we couldn’t validate (largely because they were self-signed or issued from a private CA root) were given an F grade. In this latest version, we introduced two new grades:
- Trust issues (T); If we don’t trust a certificate (and there aren’t any other security issues), we assign it a T grade (for “trust)”. This grade is thus used when the server is otherwise well-configured. Just below the T grade, we note the grade the server would get if the trust issues were resolved.
- Name mismatch issues (M); In some cases, trust issues come from name mismatches and usually when a server doesn’t actually use encryption. Such sites now get an M grade (for “mismatch”).
I expect the introduction of these new grades is going to help our users better understand what’s really going on.
How do we resolve the issues with those with T grades? Do you have any advice? We have already deleted IP but we are wondering where we get the T grade.
Any help will be appreciated. Thanks
It’s difficult to help you without seeing the actual report; what’s your hostname? Usually you’re getting a T grade because your certificate is not publicly trusted.